Atec Megger-TTR300 Series - Manual (Page 5)

TTR ® 300 Series
Three-Phase Transformer Turns Ratio Test Sets
Field upgradeable/interchangeable to any other TTR in the
Series without compromising calibration (patent pending) n n n n
Remote controllable n n n n
Works in the presence of high interference/high voltage n n n n
Displays % error vs. name plate with pass/fail limits n n n n
Measures the widest turns ratio range in the industry
(45,000:1) and provides the highest accuracy (0.1%)
n n n n
Enables operator to enter the ratio of transformer and all
of its taps letting operator know immediately when a tap
n n n n
is outside acceptable limits so problem can be flagged
Equipped with “Remote TEST” switch for single person
testing, allowing the operator to test transformers with
n n n n
“LTCs” very quickly
Measures phase deviation of the transformer primary
versus secondary; quickly indicates problems in the
n n n n
transformer such as partial shorted turns and core faults.
Useful in verifying phase errors in PTs and CTs
Rugged, lightweight design ideal for a harsh field and
substation environment
n n n n
User selectable standards: ANSI, IEC, and Australian.
Meets IEC 1010 and other standards such as CSA and UL
n n n n
“Quick Test” mode provides a fast determination of
turns ratio for single- and three-phase transformers
n n n n
Units can be operated while in transit case n n n n
Leads can stay connected while in transit case n n n n
Printing of test results without the use of a computer N/A 4” thermal 4” thermal 8.5” x 11”
spool paper spool paper thermal paper
Software
PowerDB LITE n n n n
“PowerDB ONBOARD” allows for operation of
the unit through on-screen customizable test
forms (patent pending) n
Full version PowerDB Optional Optional Optional Optional
Communications port
Printer interface N/A RS-232 RS-232 USB
Internal data storage (data sets) N/A 200 100,000 100,000
External storage device N/A N/A USB USB
Computer interface RS-232 RS-232 Ethernet Ethernet
User interface
Display type N/A 5.7” B&W 5.7” color VGA 8.4” color VGA
On-screen view N/A Text Graphical icons Test forms
Keypad N/A Numeric QWERTY QWERTY
TTR300 TTR310 TTR320 TTR330
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